Hydrogen-bonding assemblies constructed from metalloligand building blocks and H2O

摘要

New hydrogen-bonding assemblies were synthesized from the reaction of a metalloligand, [Cu(2,4-pydca)(2)](2-) (L-Cu) (2,4-pydca = 2,4-pyridinedicarboxylate), with a Fe-II ion or an imidazole in an aqueous medium and crystallographically characterized. The obtained compounds, [Fe(H2O)(6)][Cu(2,4-pydca)(2)] (1) and [Cu(2,4-pydca)(imidazole)(2)] (.) 2H(2)O (2), have metalloligand dimer units, [Cu-2(2,4-pydca)(4)](4-) and [Cu-2(2,4-pydca)(2)(imidazole)(4)], respectively, each of which assembles by pi-pi (1) and hydrogen-bonding (2) interactions to form 1-D metalloligand arrays. The I-D metalloligand arrays are linked by rich hydrogen-bonding interactions via H2O molecules. (C) 2004 Elsevier B.V. All rights reserved.